Function row

include/Eigen/src/SparseCore/SparseBlock.h:453–453

    return EvalIterator::outer() - (XprIsRowMajor ? m_block.startRow() : m_block.startCol());
  }
  inline Index row() const { return EvalIterator::row() - m_block.startRow(); }
  inline Index col() const { return EvalIterator::col() - m_block.startCol(); }

  inline operator bool() const { return EvalIterator::operator bool() && EvalIterator::index() < m_end; }